1.) Evening Rush Hour, Daily: Sao Paulo, Brazil
Suggested By: Syrax
Why It Was Horrible: Every night during evening rush hour, Sao Paulo experiences some of the worst traffic snarls in the world. In good weather, on an average night, a motorist can expect to be stuck in 50 miles of back-ups. Double that if it's raining, and if there's an accident or a public transit strike, forget about it. And don't even think about hitting the roads if it's a holiday weekend. To date, their longest backup was 182 miles on May 9, 2008, because a logging truck tipped over. All in all, Sao Paulo sounds like a very bad place to be behind the wheel.
An average of 50 miles of backed up traffic a day. Yikes!